EP0162434A3 - Dispositif prévenant l'aspiration retour pour ompes à piston rotatif - Google Patents

Dispositif prévenant l'aspiration retour pour ompes à piston rotatif Download PDF

Info

Publication number
EP0162434A3
EP0162434A3 EP85106168A EP85106168A EP0162434A3 EP 0162434 A3 EP0162434 A3 EP 0162434A3 EP 85106168 A EP85106168 A EP 85106168A EP 85106168 A EP85106168 A EP 85106168A EP 0162434 A3 EP0162434 A3 EP 0162434A3
Authority
EP
European Patent Office
Prior art keywords
oil
pressure
pump
valve
pumping chamber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP85106168A
Other languages
German (de)
English (en)
Other versions
EP0162434A2 (fr
Inventor
Alfred H. Bornemann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SPX Technologies Inc
Original Assignee
General Signal Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by General Signal Corp filed Critical General Signal Corp
Publication of EP0162434A2 publication Critical patent/EP0162434A2/fr
Publication of EP0162434A3 publication Critical patent/EP0162434A3/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
    • F04C28/28—Safety arrangements; Monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/02—Lubrication; Lubricant separation
    • F04C29/021—Control systems for the circulation of the lubricant

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
EP85106168A 1984-05-21 1985-05-20 Dispositif prévenant l'aspiration retour pour ompes à piston rotatif Withdrawn EP0162434A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US61263184A 1984-05-21 1984-05-21
US612631 1984-05-21

Publications (2)

Publication Number Publication Date
EP0162434A2 EP0162434A2 (fr) 1985-11-27
EP0162434A3 true EP0162434A3 (fr) 1986-03-05

Family

ID=24453984

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85106168A Withdrawn EP0162434A3 (fr) 1984-05-21 1985-05-20 Dispositif prévenant l'aspiration retour pour ompes à piston rotatif

Country Status (2)

Country Link
EP (1) EP0162434A3 (fr)
JP (1) JPS60249690A (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63108587U (fr) * 1986-12-31 1988-07-13
JPS63112294U (fr) * 1987-01-14 1988-07-19
JPH0255892A (ja) * 1988-08-19 1990-02-26 Kobe Steel Ltd スクリュ式真空ポンプ
CA2090390A1 (fr) * 1992-08-07 1994-02-08 Jerome C. Roach Dispositif de coupure d'huile a surete integree pour compresseur a vis
US5341658A (en) * 1992-08-07 1994-08-30 American Standard Inc. Fail safe mechanical oil shutoff arrangement for screw compressor

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3057546A (en) * 1957-02-07 1962-10-09 Edwards High Vacuum Ltd Rotary vacuum pumps
DE1428236A1 (de) * 1961-07-13 1968-11-28 Alsacienne D Electronique Et D Unter OElabdichtung arbeitende Rotationsvakuumpumpe
DD131487A1 (de) * 1977-06-24 1978-06-28 Juergen Kaunert Absperrventil mit automatischer belueftungseinrichtung fuer vakuumpumpen
DE3033082A1 (de) * 1980-09-03 1982-04-08 Leybold-Heraeus GmbH, 5000 Köln Oelgedichtete vakuumpumpe

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3057546A (en) * 1957-02-07 1962-10-09 Edwards High Vacuum Ltd Rotary vacuum pumps
DE1428236A1 (de) * 1961-07-13 1968-11-28 Alsacienne D Electronique Et D Unter OElabdichtung arbeitende Rotationsvakuumpumpe
DD131487A1 (de) * 1977-06-24 1978-06-28 Juergen Kaunert Absperrventil mit automatischer belueftungseinrichtung fuer vakuumpumpen
DE3033082A1 (de) * 1980-09-03 1982-04-08 Leybold-Heraeus GmbH, 5000 Köln Oelgedichtete vakuumpumpe

Also Published As

Publication number Publication date
JPS60249690A (ja) 1985-12-10
EP0162434A2 (fr) 1985-11-27

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19860613

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18D Application deemed to be withdrawn

Effective date: 19871202

RIN1 Information on inventor provided before grant (corrected)

Inventor name: BORNEMANN, ALFRED H.